Linear-actuated press machine having multiple motors and clutch system for multi-speed drive functionality

A press machine for forming a part, comprising:

• a moveable press ram for holding a tool that forms the part;
• an actuator for moving the moveable press ram by use of a male-female thread mechanism for producing a linear movement of the moveable press ram, the actuator including first and second actuator sprockets coupled to the male-female thread mechanism;
• a first motor drive system for producing a low-speed high-force linear movement to the moveable press ram via the actuator, the first motor drive system including a first motor for driving a first motor sprocket, a clutch, a first belt system coupling the first motor sprocket to the first actuator sprocket;
• a second motor drive system for producing a high-speed low-force linear movement to the moveable press ram via the actuator, the second motor drive system including a second motor for driving a second motor sprocket and a second belt system coupling the second motor sprocket to the second actuator sprocket;
• and
• a lubrication reservoir having fluid for providing lubrication to the male-female thread mechanism of the actuator via a fluid line;
• wherein, in response to the high-speed low-force linear movement of the second motor drive system to advance the press ram relative to the part, the fluid flows, via the fluid line, from the lubrication reservoir to a region around the male-female thread mechanism;
• wherein, in response to the high-speed low-force linear movement of the second motor drive system to retract the press ram relative to the part, the fluid flows, via fluid line, from the region around the male-female thread mechanism to the lubrication reservoir.